Kingston Technology is the world?s independent memory leader and is well-known for providing high quality memory products at an attractive price. System Specific memory modules are designed and tested in the relevant systems prior to release; and they are guaranteed to be 100% compatible with your system. All Kingston System Specific memory come with a lifetime warranty. Memory clock speed: 800 Internal memory: 1024 Internal memory type: DDR2 Memory form factor: 200-pin SO-DIMM CAS latency: 6 Memory voltage: 1.8 V Registered: N Memory bus: 64 Module configuration: 128M X 64 Compatibility: 451398-001 (HP); 480860-001 (HP); 482168-001 (HP); 482168-002 (HP); 482168-003 (HP); 482168-004 (HP); 484267-002 (HP); 484380-001 (HP); 485032-004 (HP); 493194-001 (HP); 496110-001 (HP); 506060-001 (HP); 506932-001 (HP); 536427-001 (HP); GM254AA (HP); KT292AA (HP); KT292ET (HP) Bus clock rate: 800